2015: day05: part 1
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aoc2015/input/day05.txt
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1000
aoc2015/input/day05.txt
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63
aoc2015/src/day05.rs
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63
aoc2015/src/day05.rs
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@ -0,0 +1,63 @@
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use aoc::Result;
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const INPUT: &str = include_str!("../input/day05.txt");
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pub fn run() -> Result<()> {
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println!("part 1: {}", part1(INPUT));
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Ok(())
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}
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fn part1(input: &str) -> usize {
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input
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.lines()
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.map(|line| line.trim_end())
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.filter(|line| {
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let mut vowel_count = 0;
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for c in line.chars() {
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if "aeiou".find(c).is_some() {
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vowel_count += 1;
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}
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}
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vowel_count >= 3
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})
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.filter(|line| {
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let mut prev = None;
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for c in line.chars() {
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if let Some(p) = prev {
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if p == c {
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return true;
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}
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}
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prev = Some(c);
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}
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false
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})
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.filter(|line| line.find("ab").is_none())
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.filter(|line| line.find("cd").is_none())
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.filter(|line| line.find("pq").is_none())
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.filter(|line| line.find("xy").is_none())
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.count()
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn part1_provided() {
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assert_eq!(part1("ugknbfddgicrmopn"), 1);
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assert_eq!(part1("aaa"), 1);
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assert_eq!(part1("jchzalrnumimnmhp"), 0);
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assert_eq!(part1("haegwjzuvuyypxyu"), 0);
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assert_eq!(part1("dvszwmarrgswjxmb"), 0);
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}
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#[test]
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fn part1_real() {
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assert_eq!(part1(INPUT), 258);
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}
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}
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@ -2,3 +2,4 @@ pub mod day01;
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pub mod day02;
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pub mod day03;
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pub mod day04;
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pub mod day05;
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@ -4,9 +4,10 @@ use aoc2015::day01;
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use aoc2015::day02;
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use aoc2015::day03;
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use aoc2015::day04;
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use aoc2015::day05;
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fn main() -> Result<()> {
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let days: &[fn() -> Result<()>] = &[day01::run, day02::run, day03::run, day04::run];
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let days: &[fn() -> Result<()>] = &[day01::run, day02::run, day03::run, day04::run, day05::run];
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aoc::run(days)
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}
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